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A Three-Phase Constitutive Model for Estimating the Elastic Moduli and The Strengths of Granular Composite Materials

Published online by Cambridge University Press:  08 August 2013

P.-J. Lin
P.-J. Lin*
Affiliation:
Department of Construction Technology, Tungnan University, Taipei, Taiwan 22202, R.O.C.
*
*pjlin@mail.tnu.edu.tw
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Abstract

This paper proposes a three-phase constitutive model for estimating the elastic moduli and strength of granular composite. The three-phase granular composite material containing aggregate (inclusion), matrix, and aggregate/matrix interface were investigated in this study. It was observed that significant improvement in predictive capability for three-phase granular composite materials can be achieved by using the proposed method. By using micromechanics and adopting the double-inclusion concept initiated by Hori and Nemat-Nasser and the two-phase model introduced by Yang et al.; the predicted elastic moduli for three-phase granular composite materials were evaluated. Moreover, analytical formulas were obtained to predict the strengths of three-phase granular composite materials. The potential of the proposed framework was also explored by comparing the analytical predictions in this study with other analytical methods as well as experimental data of other studies.

Keywords

Interfacial transition zoneCompressive strengthElastic moduliComposite material
Type
Research Article
Information
Journal of Mechanics , Volume 29 , Issue 4 , December 2013 , pp. 675 - 683
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2013 

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